Hinge.



PATENTED DEC. 17, 1907.

S. S. ARNOLD HINGE.

APPLICATION FILED MAR. 5, 1907.

Minesses I SAMUEL STEPHEN ARNOLD, OF TORONTO, ONTARIO, CANADA.

HINGE.

Specification of Letters Patent.

Patented-Dec. 17,1907.

A piaman filed limb 5.1907. Serial No. 360.655.

To all whom 'it may concern:

Be it known that I, SAMUEL STEPHEN Aa- NOLD, a subject of the King of Great-Britain, resident of the city of Toronto, county of York, Province of Ontario, in the Dominion of Canada, have invented certain new and useful Improvements in Hinges, of which the following is a specification.

,, The invention relates to improvements in hinges and particularly to hinges usedin joinin the ends of elliptical springs, as describer in the present specification and shown in the accompanying drawings that form part of the same.

The invention consists essentially of the novel arran ement and construction of hinge parts where y balls are set in between the flat adjoinin faces of the pin and knuckle portion of t e hin e.

The object o the invention'is primarily to improve the resilient properties of elliptical springs and thus increase their usefulness and to provide a durable hinge which may be used for other purposes than that described herein.

In the drawings, Figure 1 is a perspective view of'the hinge shown at the ends of an elliptical spring. Fig. 2 is an enlarged perspective detail of the ends of the knuckle of t e hinge and showing a leaf extending therefrom and broken away. Fig. 3 is an enlarged pers ective detail of t 1e central ortion of the nuckle showing a leaf exten ing therefrom and broken away. Fi 4 is an enlarged perspective detail of the 'nge in. Fig. 5 is a erspective detail of the nut. ig. 6 1s an en arged lon itudinal sectional view through the lungs. ig. 7 is a cross sectional view.

Llke numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, 1 is the central knuckle portion of the hinge having the ke way 2 in its central pin hole 3 and the lea 4 extending therefrom and here shown as forming the end of the lower inner band of an elliptical s ring.

5 are t e ends of the knuckle portion of the hin e fitting to each end and in alinement wit the central knuckle portion 1 having the pin holes 6 slightly larger than the pin hole 3 'and the leaf 7 extending therefrom and here shown as forming part with the upper inner band of an ellipt1cal spring.

8 are annular rooves made in the outer faces of the end nuckle portions 5 and surwith equa rolulndilng the pin holes 6 and having a roundor or I 9 is the hinge pin having the head and 10 the annular groove 11 made in the inner face of said head in proximity to the pin, said groove 11 having a rounded bed and opposing one of the annular grooves 8'. The pin 9 is of corresponding dimensions to the pin hole 3 in the central knuckle 1 and has the key 12 longitudinally arranged thereon corresponding and fitting in the key-wing 2 on the 1I1S61-- tion of'the pm in the knuc portions, further the pin at the end thereof has the reduced threaded portion 13 adapted to receive a nut.

14 is the nut and 15 is an annular groove in the inner face of said nut surrounding its central hole 16 and the said hole is threaded to screw on to the threaded end 13 of the in 9. The annular groove 15 has a mum ed bed and opposes the other of the annular grooves 8.

It will be seen from the foregoing description that the end knuckle portions 5 of the hinge will not bear on the pin and the central knuckle portion, while bearing on the ,pin will not permit the rotation of the said pin therein as said pin is locked from rotation therein by the key 12 in the key-wa 2. In consequence of this, the bearing of t e hinge will be thrown on to the balls 17 inserted between the opposing grooves 8 and 11 and zipd 15 which form ball races for the said The nut 14 ma be locked on in any suitable inanner, suc as bysplaying the end of the pin or by providing a suitable form of s rin s as'descri ed in the present speci1ica-' tion, ut it will readily be understood that it may be applied to many forms of hinges, facility and to equal advantage.

What I claim as my invention is z-- 1. A hinge, com rising a central knuckle portion, end knuck e portions adjoining said central knuckle portion and having ball races in their outer faces, a pin non-rotatably secured in said central )or'tion and extending throu h said knuckle portions and hav ing a ball race in the head thereof to the outside of one of said end portions and opposing the ball race in said end portion, a nut secured to the end of said pin and having a ball race in its under face op using the ball race in the other of said en portions, and balls inserted between the opposing annular grooves respectively, substantially as de scribed.

2. A hinge, comprising end knuckle portions extending from the leaf portion and having on each of the outer faces thereof an annular groove surrounding the pin hole, said. annular grooves having rounded beds and forming annular projections therearound, a central knuckle portion having a pin hole of smaller dimensions than the pin holes in said knuckle portions and a suitable leaf extending therefrom and a key-way in said pin hole, a pin having a key projecting therefrom corresponding to said key-way and fitting therein and an annular groove in the inner face of the head thereof opposing one of the aforesaid annular grooves, a nut screwing on to the end of said pin and having an annular groove in the inner face thereof opposing the other of the said annular grooves in the end knuckles, said grooves in said head and said nut having rounded beds corresponding to the rounded beds of the knuckle grooves, and. balls inserted in said opposing grooves, substantially as de scribed.

3. In a device of the class described, in combination, end knuckle members extending from a suitable leaf and having projecting annular surfaces on the outer sides thereof extending from annular grooves in the side faces surrounding the in holes, a central knuckle ortion extencfi suitable leaf an having its in hole of smaller dimensions than the a oresaid pin hole and a key-way longitudinally arranged therein, a pin of correspondin dimensions to said in hole in the central dmuckle portion an having a key projecting therefrom fitting into the aforesald key-way and the inner face of the head grooved to form the annular projecting faces overlapping the aforesaid annular projecting faces from one of the end knuckles, a nut screwed on to the end of said pin and having a groove surrounding the central hole therein forming annular projecting aforesaid projecting surfaces on t e other of said end knuckles, and balls inserted in the opposing rooves so arranged, substantially as descri ed.

Signed at the city of Toronto, in the county of York, Province of Ontario, in the Dominion of Canada, this 17th day of January, 1907.

SAMUEL STEPHEN ARNOLD.

Witnesses:

H. DENNISON, E. W1LKIN.

'ng; from a faces overlap ing the 

